... 21gsm, 22gsm, 23gsm Heat-Seal Tea Bag Filter PaperSPECIFICATIOI. NAME OF PRODUCT:heatsealable filter paper for teabags16.5gsm, 17gsm, 18gsm, 20gsm ... ≥4000≥3000Moisture %≤8.0III. Material ingredient1.60% of wood pulp2. 20% of Abaca fiber3. 20% of PP fiberIV. Requirement for Product Appearance 1. The ... product can be customized, usually there are 87,125,140,264,564 mm Roll outer diameter is 450-600mm, ...